Abstract
Hierarchical models of intelligence are highly informative and widely accepted. Application of these models to twin data, however, is sparse. This paper addresses the question of how a genetic hierarchical model fits the Wechsler Adult Intelligence Scale (WAIS) subtests and the Raven Standard Progressive test score, collected in 194 18-year-old Dutch twin pairs. We investigated whether first-order group factors possess genetic and environmental variance independent of the higher-order general factor and whether the hierarchical structure is significant for all sources of variance. A hierarchical model with the 3 Cohen group-factors (verbal comprehension, perceptual organisation and freedom-from-distractibility) and a higher-order g factor showed the best fit to the phenotypic data and to additive genetic influences (A), whereas the unique environmental source of variance (E) could be modeled by a single general factor and specifics. There was no evidence for common environmental influences. The covariation among the WAIS group factors and the covariation between the group factors and the Raven is predominantly influenced by a second-order genetic factor and strongly support the notion of a biological basis of g.
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REFERENCES
Boomsma, D. I., and Molenaar, P. C. M. (1986). Using LISREL to analyze genetic and environmental covariance structure. Behav. Genet. 16:237–250.
Boomsma, D. I. (1993). Current status and future prospects in twin studies of the development of cognitive abilities, infancy to old age. In T.J. Bouchard and P. Propping (eds.), Twins as a Tool of Behavioral Genetics, John Wiley & Sons, Chichester, pp. 67–82.
Boomsma, D. I., Kaptein, A., Kempen, H. J. M., Gevers Leuven, J. A., & Princen, H. M. G. (1993). Lipoprotein(a): Relation to other risk factors and genetic heritability. Results from a Dutch parent-twin study. Atherosclerosis 99:23–33.
Bouma, A., Mulder, J. L., and Lindeboom, J. (1996). Neuropsychologische Diagnostiek: handboek. Swets & Zeitlinger B.V, Lisse, The Netherlands.
Burt, C. L. (1949). The factors of the Mind: An introduction to Factor Analysis in Psychology. Macmillan, New York.
Cardon, L. R., Fulker, D. W., DeFries, J. C., and Plomin, R. (1992). Multivariate genetic analysis of specific cognitive abilities in the Colorado Adoption Project at age 7. Intelligence 16:383–400.
Cardon, L. R., and Fulker, D. W. (1993). Genetics of specific cognitive abilities. In R. Plomin, and G.E. McClearn (eds.), Nature, Nurture & Psychology, American Psychological Association, Washington, pp. 99–120.
Casto, S. D., DeFries, J. C., and Fulker, D. W. (1995). Multivariate genetic analysis of Wechsler Intelligence Scale for Children-Revised (WISC-R) factors, Behav. Genet. 25:25–32.
Cohen, J. (1957). The factor structure of the WAIS between early adulthood and old age. J. Consul. Psychol. 21:283–290.
Heath, A. C., Jardine, R., Eaves, L. J., and Martin, N. G. (1989a). The genetic structure of personality II. Genetic item analysis of the EPQ. Personality and Individual Differences 10:615–624.
Heath, A. C., Eaves, L. J., and Martin, N. G. (1989b). The genetic structure of personality III. Multivariate analysis of the EPQ scales. Personality and Individual Differences 10:877–888.
Horn, J. L., and Catell, R. B. (1966). Refinement and test of the theory of fluid and crystallized intelligence. J. Educ. Psychol. 57:253–270.
Jensen, A. R. (1998). The g Factor: The Science of Mental Ability. Praeger, Westport, Connecticut.
Kaufman, A. S. (1975). Factor analysis of the WISC-R at 11 age levels between 61.2 and 161.2 years. J. Consult. Clin. Psychol. 43:135–147.
LaBuda, M. C., DeFries, J. C., and Fulker, D. W. (1987). Genetic and environmental covariance structures among WISC-R subtests: A twin study. Intelligence 11:233–244.
Luo, D., Petrill, S. A., and Thompson, L. A. (1994). An exploration of genetic g: Hierarchical factor analysis of cognitive data from the Western Reserve Twin Project. Intelligence 18:335–347.
Martin, N. G., and Eaves, L. J. (1977). The genetical analysis of covariance structure. Heredity 38:79–95.
Mulder, J. L., Dekker, R., and Dekker, P. H. (1995). Verbale leer-en Geheugen Test. Handleiding voor afname, scoring en interpretatie van de test. Lisse, The Netherlands: Swets & Zeitlinger B.V.
Neale, M. C. (1997). Statistical Modeling with Mx, Department of Human Genetics, Box 3, MCV, Richmond VA 23298.
Neale, M. C., and Miller, M. B. (1997). The use of likelihood-based confidence intervals in genetic models. Behav. Genet. 27:113–120.
Petrill, S. A., Luo, D., Thompson, L. A., and Detterman, D. K. (1996). The independent prediction of general intelligence by elementary cognitive tasks: genetic and environmental influences. Behav. Genet. 26:135–147.
Petrill, S. A. (1997). Molarity versus modularity of cognitive functioning? A behavioral genetic perspective. Curr. Direct. Psychological Sci. 6:96–99.
Price, T. S., Eley, T. C., Dale, P. S., Stevenson, J., Saudino, K., and Plomin, R. (2000). Genetic and environmental covariation between verbal and nonverbal cognitive development in infancy. Child Dev. 71:948–959.
Reinert, G. (1970). Comparative factor analytic studies of intelligence throughout the human life-span. In L. R. Goulet & P. B. Baltes (Eds.), Life-span Developmental Psychology (pp. 467– 484). New York: Academic Press.
Rietveld, M. J. H., Dolan, C. V., van Baal, G. C. M., and Boomsma D. I. A. (2001). Twin study of differentiation of cognitive abilities in childhood (Submitted).
Rijsdijk, F. V., Boomsma, D. I., and Vernon P. A. (1995). Genetic analysis of peripheral nerve conduction velocity in twins. Behav. Genet. 25:341–348.
Rijsdijk, F. V., and Boomsma, D. I. (1995). Genetic mediation of the correlation between peripheral nerve conduction velocity and IQ. Behav. Genet. 27:87–98.
Rijsdijk F. V., Vernon P. A., and Boomsma D. I. (1998). The genetic basis of the relation between speed-of-information-processing and IQ. Behav. Brain Res. 95:77–84.
Scarr, S., and McCartney, K. (1983). How people make their own environments: A theory of genotype-environmental effects. Child Dev. 54:424–435.
Stinissen, J., Willems, P. J., Coetsier, P., and Hulsman, W. L. L. (1970). Manual for the Dutch translated and adapted version of the Wechsler Adult Intelligence Scale (WAIS). Swets & Zeitlinger B.V, Lisse, The Netherlands.
Tambs, K., Sundet, J. M., and Magnus, P. (1986). Genetic and environmental contributions to the covariation between the Wechsler Adult Intelligence Scale (WAIS) sub-tests: A study of twins. Behav. Genet. 16:475–491.
Thompson, L. A. (1993). Genetic contributions to intellectual development in infancy and childhood. In P.A. Vernon (ed.), Biological Approaches to the Study of Human Intelligence, Ablex, Norwood, New Jersey, pp. 95–138.
Thorndike, R. L. (1987). Stability of factor loadings. Personality and Individual Differences 8:585–586.
Van Beijsterveldt, C. E. M., van Baal, G. C. M., de Geus, E. J. C., Molenaar, P. C. M., and Boomsma, D. I. (1995). Individual differences in P300 amplitude: A longitudinal study in adolescent twins. Behav. Genet. 25:292 (abstract).
Van Beijsterveldt, C. E. M., Molenaar, P. C. M., de Geus, E. J. C., and Boomsma, D. I. (1996). Heritability of human brain functioning as assessed by Electroencephalography (EEG). Am. J. Hum. Genet. 58:562–573.
Vernon, P. A. (1983). Speed of information processing and general intelligence. Intelligence 7:53–70.
Vernon, P. A. (1989). The generality of g. Personality and Individual Differences 10:803–804.
Vernon, P. E. (1950). The structure of human abilities. London: Methuen
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Rijsdijk, F.V., Vernon, P. & Boomsma, D.I. Application of Hierarchical Genetic Models to Raven and WAIS Subtests: A Dutch Twin Study. Behav Genet 32, 199–210 (2002). https://doi.org/10.1023/A:1016021128949
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DOI: https://doi.org/10.1023/A:1016021128949